CN1989902A - Self-destruct safety blood taking needle - Google Patents
Self-destruct safety blood taking needle Download PDFInfo
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- CN1989902A CN1989902A CN 200510111982 CN200510111982A CN1989902A CN 1989902 A CN1989902 A CN 1989902A CN 200510111982 CN200510111982 CN 200510111982 CN 200510111982 A CN200510111982 A CN 200510111982A CN 1989902 A CN1989902 A CN 1989902A
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- needle holder
- needle
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- wall
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a safe destruct blood taking needles which is characterized by: the outer wall of said needle base at least is equipped with two spacing resilient wings which are corresponding each other, the upper end of spacing resilient wings is fixed on the outer wall of needle base, the spacing resilient wings and outer wall of needle base is with angle to making the front end of needle is conical, the front end of needle is cup jointed with spring and the rear end is cup jointed with push bar, the end of push rod front end outer wall pushes the lower end of spacing resilient wing, the use results are stability, rate of destruct is high, precision is high, the cost of molding products is low, assembly is easy and fast, and it is easy to spreading and applying.
Description
Technical field:
The present invention relates to technical field of medical, a kind of specifically simple in structure and self-destruct safety blood taking needle that practicality is very strong.
Background technology:
The patent No.: 03141465.6, the applying date: on July 8th, 2003, the patentee: money E-TEN Corp discloses " disposable safe type blood taking needle " and has been made up of blood taking needle body, shell fragment handle, shell in this.Be characterized in: there is the shell fragment end hook that is embedded on the needle stand skew back face lower end of shell fragment handle, it can transmit bulldozing needle base and blood taking needle carries out aculeus blood-taking, when needle stand to final position, the shell fragment buckle that touches in the shell because of the shell fragment end hook launches, the needle stand and the blood taking needle that discharge bounce back under the effect of elastic body, the shell fragment end hook cross the shell fragment buckle by snap close after, whole shell fragment handle can not be moved, guaranteed disposable use; Simultaneously, also stoped moving down of needle stand and exposing of blood taking needle effectively, played the safeguard protection effect by the shell fragment end hook of snap close.Because above-mentioned design is to advance with bilateral, needle stand bounces back naturally and is operation principle, increased the stationarity of turnover pin, reduced sensation of pricking, its main claim content is: a kind of disposable safe type blood taking needle, by the blood taking needle body, the shell fragment handle, shell is formed, it is characterized in that: there is the shell fragment end hook that is embedded on the needle stand skew back face shell fragment handle lower end, can press down the needle stand and the blood taking needle of blood taking needle body, carry out aculeus blood-taking, needle stand is to final position, because of touching shell inner shrapnel buckle, the shell fragment end hook launches, the needle stand and the blood taking needle that discharge bounce back under the effect of elastic body, when the shell fragment end hook cross the shell fragment buckle by snap close after, the shell fragment handle can not be moved again, simultaneously also stoped needle stand to move down and the exposing of blood taking needle, though disclosed technology contents can reach disposable final effect in this case, but its structure is too complicated for the blood taking needle that needs are produced in enormous quantities, it is too high to offer the mould requirement, not only directly causing going into operation, just current cost is higher, but also it is slow assembling speed to occur, and problems such as product rejection rate height are so still need to make improvements.
Summary of the invention:
The object of the present invention is to provide a kind of self-destruct safety blood taking needle, it is simple in structure, and is practical, safety self-destruct rate height, and result of use is stable, and die sinking is easy to assembly, has overcome some shortcomings of the prior art.
To achieve these goals, technical scheme of the present invention is: a kind of self-destruct safety blood taking needle, it mainly comprises shell, the top end of shell is provided with opening, be provided with needle holder in the shell, the top of needle holder is provided with needle point, it is characterized in that: described needle holder outer wall place is provided with two corresponding mutually spacing elastic wings at least, the outer wall of needle holder is fixed in the upper end of spacing elastic wings, be provided with angle between spacing elastic wings and the needle holder outer wall, so the tapered shape of needle holder front end, the needle holder front end sleeve is connected to spring, the rear end socket push rod of needle holder, the outer wall top of the push rod front end body of rod props up the lower end of spacing elastic wings.
The invention discloses a kind of self-destruct safety blood taking needle, it adopts the needle holder that has spacing elastic wings, makes needle holder be cone-shaped, have the architectural characteristic that Yi Jinnan goes out, cooperate spring pressurized moment can discharge the effect of superpower elastic force again, design that this kind of is simple and reasonable, practical self-destruct safety blood taking needle, its result of use is stable, and self-destruction rate height has very high precision, product die sinking cost is low, easy to assembly, assembling speed is fast, is easy to apply.
Description of drawings:
Fig. 1 is a structural representation of the present invention
Configuration state sketch map when Fig. 2 is blood sampling of the present invention
Configuration state sketch map when Fig. 3 shows safety self-destruct for structure of the present invention
Fig. 4 is a general assembly drawing of the present invention
Fig. 5 is a shell mechanism sketch map of the present invention
Fig. 6 is a needle holder structural representation of the present invention
Fig. 7 is a spring structure sketch map of the present invention
Fig. 8 is a pusher structure sketch map of the present invention
The specific embodiment:
With reference to the accompanying drawings, the present invention further is described
The present invention is a kind of self-destruct safety blood taking needle, it mainly comprises shell 1, the top end of shell is provided with opening 5, be provided with needle holder 2 in the shell, the top of needle holder is provided with needle point 3, it is characterized in that: described needle holder outer wall place is provided with two corresponding mutually spacing elastic wings 4 at least, the outer wall of needle holder is fixed in the upper end of spacing elastic wings, be provided with angle between spacing elastic wings and the needle holder outer wall, so tapered shape of needle holder front end, the needle holder front end sleeve is connected to spring 6, the rear end socket push rod 7 of needle holder, the outer wall top of the push rod front end body of rod props up the lower end of spacing elastic wings, the needle holder front end sleeve is connected to spring 6, the tapered shape of needle holder front end, so spring one end props up needle holder, its other end props up shell top end opening place, the diameter at shell top end opening place is less than the diameter between the outer casing inner wall of its underpart, the outer casing inner wall middle section laterally is provided with groove 8, groove is the circle configurations of sealing, and push rod front end body of rod outer wall place is provided with the bulge loop 9 that matches with groove, inwall place, shell lower end is provided with chamfering 10, chamfering structure is convenient to the assembling of push rod in the product, spacing between shell vertical central axis and the spacing elastic wings upper end is less than the spacing between shell vertical central axis and groove 8 tops, and the spacing between shell vertical central axis and the spacing elastic wings lower end is greater than the spacing between shell vertical central axis and groove 8 tops.
When the present invention specifically implements, as shown in fig. 1, this is the initial configuration state of blood taking needle, be provided with spring between needle holder and the shell upper opening, and the annular groove at the bulge loop at push rod place and outer casing inner wall place constitutes position limiting structure, bulge loop is stuck in the groove, make push rod can not be subjected to the downward active force of spring and skid off outer casing inner wall, when beginning to take a blood sample, upwards promote push rod, because the external wall of push rod top bar top props up the lower end of spacing elastic wings, so under active force, needle holder is to front slide, though the diameter at shell epimere inwall place is less, but because the front end of needle holder is cone, moreover, spacing elastic wings is opened downwards again, with needle holder outer wall certain included angle again, when stressed, the stressed disappearance of angle meeting, whole needle holder front end becomes a column structure, needle holder just can be taken advantage of a situation and be slipped into the shell inner cavity leading portion like this, up to complete dieback, as shown in Figure 2, structural representation when take a blood sample for blood taking needle this moment, after the blood sampling action is finished, unclamp the finger that promotes push rod, under acting force of the spring, moment, needle holder was subjected to displacement backward, because the time of this displacement is very short, the spacing elastic wings that is extruded modification also has little time to reset, and moment is slipped into the push rod inner chamber so needle holder can be taken advantage of a situation, when the needle holder lower end arrives to the push rod intracavity bottom, the effect instantaneous owing to spring is bigger, thus can make that push rod is subjected to displacement together backward, up to, the vertical bulge loop of push rod supports the lower end of falling the groove, under the effect of position limiting structure, needle holder, push rod, spring is in the synchronization stop motion, at this moment, needle holder rests on the intracavity bottom of the push rod body of rod, at this moment, how to promote push rod again, the needle point of needle holder top end can not expose the vertical opening of shell yet, reach the purpose of safety self-destruct, as shown in Figure 3.
Claims (5)
1, a kind of self-destruct safety blood taking needle, it mainly comprises shell (1), the top end of shell is provided with opening (5), be provided with needle holder (2) in the shell, the top of needle holder is provided with needle point (3), it is characterized in that: described needle holder outer wall place is provided with two corresponding mutually spacing elastic wings (4) at least, the outer wall of needle holder is fixed in the upper end of spacing elastic wings, be provided with angle between spacing elastic wings and the needle holder outer wall, so tapered shape of needle holder front end, the needle holder front end sleeve is connected to spring (6), the rear end socket push rod (7) of needle holder, and the outer wall top of the push rod front end body of rod props up the lower end of spacing elastic wings.
2, a kind of self-destruct safety blood taking needle according to claim 1, it is characterized in that: the needle holder front end sleeve is connected to spring (6), the tapered shape of needle holder front end, so spring one end props up needle holder, its other end props up shell top end opening place, and the diameter at shell top end opening place is less than the diameter between the outer casing inner wall of its underpart.
3, a kind of self-destruct safety blood taking needle according to claim 1 is characterized in that: the outer casing inner wall middle section laterally is provided with groove (8), and push rod front end body of rod outer wall place is provided with the bulge loop (9) that matches with groove.
4, a kind of self-destruct safety blood taking needle according to claim 2 is characterized in that: inwall place, shell lower end is provided with chamfering (10).
5, a kind of self-destruct safety blood taking needle according to claim 1, it is characterized in that: the spacing between shell vertical central axis and the spacing elastic wings upper end is less than the spacing between shell vertical central axis and groove (8) top, and the spacing between shell vertical central axis and the spacing elastic wings lower end is greater than the spacing between shell vertical central axis and groove (8) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510111982 CN1989902A (en) | 2005-12-26 | 2005-12-26 | Self-destruct safety blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510111982 CN1989902A (en) | 2005-12-26 | 2005-12-26 | Self-destruct safety blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1989902A true CN1989902A (en) | 2007-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510111982 Pending CN1989902A (en) | 2005-12-26 | 2005-12-26 | Self-destruct safety blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1989902A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101606843B (en) * | 2009-07-22 | 2010-08-25 | 山东威高集团医用高分子制品股份有限公司 | Safety type blood collecting protecting sleeve |
| CN112349360A (en) * | 2020-10-29 | 2021-02-09 | 深圳真一健康管理有限公司 | Intestinal health management system and method based on food intolerance detection |
-
2005
- 2005-12-26 CN CN 200510111982 patent/CN1989902A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101606843B (en) * | 2009-07-22 | 2010-08-25 | 山东威高集团医用高分子制品股份有限公司 | Safety type blood collecting protecting sleeve |
| CN112349360A (en) * | 2020-10-29 | 2021-02-09 | 深圳真一健康管理有限公司 | Intestinal health management system and method based on food intolerance detection |
| CN112349360B (en) * | 2020-10-29 | 2024-01-09 | 山东益本天肽健康产业有限公司 | Intestinal health management system and method based on food intolerance detection |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |